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Executive functions development

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https://www.readbyqxmd.com/read/28220477/parent-child-learning-interactions-a-review-of-the-literature-on-scaffolding
#1
Roni Mermelshtine
BACKGROUND: Scaffolding can be observed during learning-based interactions, when interventions by parents are adjusted according to children's observed abilities, with the main goal of enabling the child to work independently (Wood et al., 1976, Journal of child psychology and psychiatry, 17, 89). Such contingent instruction behaviours occur from infancy, and are said to be relevant for children's development of executive function, language acquisition, and cognitive and academic abilities...
February 21, 2017: British Journal of Educational Psychology
https://www.readbyqxmd.com/read/28220087/mental-state-understanding-in-children-with-agenesis-of-the-corpus-callosum
#2
Beatrix Lábadi, Anna M Beke
Impaired social functioning is a well-known outcome of individuals with agenesis of the corpus callosum. Social deficits in nonliteral language comprehension, humor, social reasoning, and recognition of facial expression have all been documented in adults with agenesis of the corpus callosum. In the present study, we examined the emotional and mentalizing deficits that contributing to the social-cognitive development in children with isolated corpus callosum agenesia, including emotion recognition, theory of mind, executive function, working memory, and behavioral impairments as assessed by the parents...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28219751/evidence-for-a-role-of-corticopetal-noradrenergic-systems-in-the-development-of-executive-function
#3
David J Mokler, Christine E Miller, Jill A McGaughy
Adolescence is a period during which many aspects of executive function are maturing. Much of the literature has focused on discrepancies between sub-cortical and cortical development that is hypothesized to lead to over-processing of reinforcement related stimuli unchecked by fully matured response inhibition. Specifically, maturation of sub-cortical dopaminergic systems that terminate in the nucleus accumbens has been suggested to occur prior to the full maturation of corticopetal dopaminergic systems. However, converging evidence supports the hypothesis that many aspects of cognitive control are critically linked to cortical noradrenergic systems, that the effectiveness of drugs used to treat disorders of executive function, e...
February 17, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28215989/klotho-regulates-ca1-hippocampal-synaptic-plasticity
#4
Qin Li, Hai T Vo, Jing Wang, Stephanie Fox-Quick, Lynn E Dobrunz, Gwendalyn D King
Global klotho overexpression extends lifespan while global klotho-deficiency shortens it. As well, klotho protein manipulations inversely regulate cognitive function. Mice without klotho develop rapid onset cognitive impairment before they are 2months old. Meanwhile, adult mice overexpressing klotho show enhanced cognitive function, particularly in hippocampal-dependent tasks. The cognitive enhancing effects of klotho extend to humans with a klotho polymorphism that increases circulating klotho and executive function...
February 12, 2017: Neuroscience
https://www.readbyqxmd.com/read/28211648/cognitive-development-in-preterm-infants-multi-faceted-deficits-reflect-vulnerability-of-rigorous-neurodevelopmental-pathways
#5
Jessie R Maxwell, Tracylyn R Yellowhair, Akosua Y Oppong, Jenny E Camacho, Jean R Lowe, Lauren L Jantzie, Robin K Ohls
Prematurity remains the major cause of neonatal morbidity and mortality, with 15 million preterm births occurring worldwide in 2010. Infants born less than 37 weeks gestation are at high risk of abnormal neurodevelopmental outcomes, given that the central nervous system is extremely sensitive to an abnormal intra- and extra-uterine environment. Children born preterm have multiple neurodevelopmental sequelae involving dynamic and complex cognitive deficits. Former preterm infants have difficulty with each domain of cognition, including executive function, language, learning and memory, complex attention, perceptual-motor function and social cognition when compared to children born at term...
February 17, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28209774/methyl-donor-supplementation-alters-cognitive-performance-and-motivation-in-female-offspring-from-high-fat-diet-fed-dams
#6
Sarah E McKee, Nicola M Grissom, Christopher T Herdt, Teresa M Reyes
During gestation, fetal nutrition is entirely dependent on maternal diet. Maternal consumption of excess fat during pregnancy has been linked to an increased risk of neurologic disorders in offspring, including attention deficit/hyperactivity disorder, autism, and schizophrenia. In a mouse model, high-fat diet (HFD)-fed offspring have cognitive and executive function deficits as well as whole-genome DNA and promoter-specific hypomethylation in multiple brain regions. Dietary methyl donor supplementation during pregnancy or adulthood has been used to alter DNA methylation and behavior...
February 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28208604/reducing-fall-risk-with-combined-motor-and-cognitive-training-in-elderly-fallers
#7
Francesco Barban, Roberta Annicchiarico, Matteo Melideo, Alessia Federici, Maria Giovanna Lombardi, Simone Giuli, Claudia Ricci, Fulvia Adriano, Ivo Griffini, Manuel Silvestri, Massimo Chiusso, Sergio Neglia, Sergio Ariño-Blasco, Raquel Cuevas Perez, Yannis Dionyssiotis, Georgios Koumanakos, Milo Kovačeić, Nuria Montero-Fernández, Oscar Pino, Niels Boye, Ulises Cortés, Cristian Barrué, Atia Cortés, Peter Levene, Stelios Pantelopoulos, Roberto Rosso, José Antonio Serra-Rexach, Angelo Maria Sabatini, Carlo Caltagirone
BACKGROUND: Falling is a major clinical problem in elderly people, demanding effective solutions. At present, the only effective intervention is motor training of balance and strength. Executive function-based training (EFt) might be effective at preventing falls according to evidence showing a relationship between executive functions and gait abnormalities. The aim was to assess the effectiveness of a motor and a cognitive treatment developed within the EU co-funded project I-DONT-FALL...
February 10, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28205494/language-deficits-as-a-preclinical-window-into-parkinson-s-disease-evidence-from-asymptomatic-parkin-and-dardarin-mutation-carriers
#8
Adolfo M García, Lucas Sedeño, Natalia Trujillo, Yamile Bocanegra, Diana Gomez, David Pineda, Andrés Villegas, Edinson Muñoz, William Arias, Agustín Ibáñez
OBJECTIVES: The worldwide spread of Parkinson's disease (PD) calls for sensitive and specific measures enabling its early (or, ideally, preclinical) detection. Here, we use language measures revealing deficits in PD to explore whether similar disturbances are present in asymptomatic individuals at risk for the disease. METHODS: We administered executive, semantic, verb-production, and syntactic tasks to sporadic PD patients, genetic PD patients with PARK2 (parkin) or LRRK2 (dardarin) mutation, asymptomatic first-degree relatives of the latter with similar mutations, and socio-demographically matched controls...
February 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28202725/stretchable-living-materials-and-devices-with-hydrogel-elastomer-hybrids-hosting-programmed-cells
#9
Xinyue Liu, Tzu-Chieh Tang, Eléonore Tham, Hyunwoo Yuk, Shaoting Lin, Timothy K Lu, Xuanhe Zhao
Living systems, such as bacteria, yeasts, and mammalian cells, can be genetically programmed with synthetic circuits that execute sensing, computing, memory, and response functions. Integrating these functional living components into materials and devices will provide powerful tools for scientific research and enable new technological applications. However, it has been a grand challenge to maintain the viability, functionality, and safety of living components in freestanding materials and devices, which frequently undergo deformations during applications...
February 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28197358/biocomplexity-and-fractality-in-the-search-of-biomarkers-of-aging-and-pathology-focus-on-mitochondrial-dna-and-alzheimer-s-disease
#10
Annamaria Zaia, Pierluigi Maponi, Giuseppina Di Stefano, Tiziana Casoli
Alzheimer's disease (AD) represents one major health concern for our growing elderly population. It accounts for increasing impairment of cognitive capacity followed by loss of executive function in late stage. AD pathogenesis is multifaceted and difficult to pinpoint, and understanding AD etiology will be critical to effectively diagnose and treat the disease. An interesting hypothesis concerning AD development postulates a cause-effect relationship between accumulation of mitochondrial DNA (mtDNA) mutations and neurodegenerative changes associated with this pathology...
February 2017: Aging and Disease
https://www.readbyqxmd.com/read/28196378/executive-function-in-preschoolers-with-primary-language-impairment
#11
Hui-Chun Yang, Shelley Gray
Purpose: The purpose of this study was to evaluate whether preschoolers with primary language impairment (PLI) show deficits in executive function (EF) compared with their peers with typical development (TD) when inhibition, updating, and mental-set shifting are examined using both linguistically based and visually based tasks. Method: Twenty-two 4- and 5-year-old preschoolers with PLI and 30 preschoolers with TD completed 2 sets of computerized EF tasks: 3 that were linguistically based and 3 that were visually based...
February 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28195229/international-spinal-cord-injury-bowel-function-basic-data-set-version-2-0
#12
K Krogh, A Emmanuel, B Perrouin-Verbe, M A Korsten, M J Mulcahey, F Biering-Sørensen
STUDY DESIGN: International expert working group. OBJECTIVES: To revise the International Spinal Cord Injury (SCI) Bowel Function Basic Data Set as a standardized format for the collecting and reporting of a minimal amount of information on bowel function in clinical practice and research. SETTING: Working group appointed by the American Spinal injury association (ASIA) and the International Spinal Cord Society (ISCoS). METHODS: The draft prepared by the working group was reviewed by the International SCI Data Set Committee and later by members of the ISCoS Executive and Scientific Committees and the ASIA board...
February 14, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28193119/the-key-search-subtest-of-the-behavioural-assessment-of-the-dysexecutive-syndrome-in-children-bads-c-instrument-reveals-impaired-planning-without-external-constraints-in-children-with-neurofibromatosis-type-1
#13
Daria Riva, Chiara Vago, Alessandra Erbetta, Veronica Saletti, Silvia Esposito, Roberto Micheli, Sara Bulgheroni
Studies of executive function and its relationship with brain T2-weighted hyperintensities in children with neurofibromatosis type 1 (NF1) have yielded inconsistent results. We examined 16 children with NF1 aged 8 to 15 years, of normal intelligence, and compared their findings to those of 16 siblings and 16 typically developing children using the Behavioural Assessment of the Dysexecutive Syndrome in Children (BADS-C). NF1 patients had an adequate overall score at BADS-C, but showed significantly lower performance than typical peers in the Key Search subtest...
March 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28191018/thymosin-%C3%AE-4-improves-differentiation-and-vascularization-of-ehts
#14
Tilman Ziegler, Rabea Hinkel, Andrea Stöhr, Thomas Eschenhagen, Karl-Ludwig Laugwitz, Ferdinand le Noble, Robert David, Arne Hansen, Christian Kupatt
Induced pluripotent stem cells (iPSC) constitute a powerful tool to study cardiac physiology and represents a promising treatment strategy to tackle cardiac disease. However, iPSCs remain relatively immature after differentiation. Additionally, engineered heart tissue (EHT) has been investigated as a therapy option in preclinical disease models with promising results, although their vascularization and functionality leave room for improvement. Thymosin β4 (Tβ4) has been shown to promote the differentiation of progenitor cell lines to cardiomyocytes while it also induces angiogenic sprouting and vascular maturation...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28190508/navigating-the-clinical-trial-pathway-conception-design-execution-and-results-dissemination
#15
John S Sampalis, Joanne Watson, Stella Boukas, Marianna Boukas, Natalie Harvey, Sanjay Machado, Michel Bordeleau, Emmanouil Rampakakis
Dr Sampalis is founder, Chief Executive Officer, and Chief Scientific Officer of JSS Medical Research Inc, founded in 1997. He is a tenured professor of Surgery and Epidemiology & Biostatistics of McGill University, the University of Montreal and University of Laval. Recognized as a leading clinical epidemiologist and one of the top trauma researchers in Canada, he possesses extensive expertise in health services research, clinical trials, and offers services as a Research and Epidemiological Consultant for numerous pharmaceutical companies, hospitals and government organizations and agencies...
March 2017: Surgery
https://www.readbyqxmd.com/read/28187713/novel-methods-to-optimize-gene-and-statistic-test-for-evaluation-an-application-for-escherichia-coli
#16
Tran Tuan-Anh, Le Thi Ly, Ngo Quoc Viet, Pham The Bao
BACKGROUND: Since the recombinant protein was discovered, it has become more popular in many aspects of life science. The value of global pharmaceutical market was $87 billion in 2008 and the sales for industrial enzyme exceeded $4 billion in 2012. This is strong evidence showing the great potential of recombinant protein. However, native genes introduced into a host can cause incompatibility of codon usage bias, GC content, repeat region, Shine-Dalgarno sequence with host's expression system, so the yields can fall down significantly...
February 10, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28183402/the-effects-of-acute-inflammation-on-cognitive-functioning-and-emotional-processing-in-humans-a-systematic-review-of-experimental-studies
#17
REVIEW
Jessica Bollen, Leanne Trick, David Llewellyn, Chris Dickens
OBJECTIVE: The cognitive neuropsychological model of depression proposes that negative biases in the processing of emotionally salient information have a central role in the development and maintenance of depression. We have conducted a systematic review to determine whether acute experimental inflammation is associated with changes to cognitive and emotional processing that are thought to cause and maintain depression. METHODS: We identified experimental studies in which healthy individuals were administered an acute inflammatory challenge (bacterial endotoxin/vaccination) and standardised tests of cognitive function were performed...
March 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28181248/i-spatial-skills-their-development-and-their-links-to-mathematics
#18
Brian N Verdine, Roberta Michnick Golinkoff, Kathy Hirsh-Pasek, Nora S Newcombe
Understanding the development of spatial skills is important for promoting school readiness and improving overall success in STEM (science, technology, engineering, and mathematics) fields (e.g., Wai, Lubinski, Benbow, & Steiger, 2010). Children use their spatial skills to understand the world, including visualizing how objects fit together, and can practice them via spatial assembly activities (e.g., puzzles or blocks). These skills are incorporated into measures of overall intelligence and have been linked to success in subjects like mathematics (Mix & Cheng, 2012) and science (Pallrand & Seeber, 1984; Pribyl & Bodner, 1987)...
March 2017: Monographs of the Society for Research in Child Development
https://www.readbyqxmd.com/read/28180082/executive-attention-deficits-after-traumatic-brain-injury-reflect-impaired-recruitment-of-resources
#19
Sudhin A Shah, Yelena Goldin, Mary M Conte, Andrew M Goldfine, Maliheh Mohamadpour, Brian C Fidali, Keith Cicerone, Nicholas D Schiff
Deficits in attention are a common and devastating consequence of traumatic brain injury (TBI), leading to functional impairments, rehabilitation barriers, and long-term disability. While such deficits are well documented, little is known about their underlying pathophysiology hindering development of effective and targeted interventions. Here we evaluate the integrity of brain systems specific to attentional functions using quantitative assessments of electroencephalography recorded during performance of the Attention Network Test (ANT), a behavioral paradigm that separates alerting, orienting, and executive components of attention...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28178738/core-executive-functions-are-associated-with-success-in-young-elite-soccer-players
#20
Torbjörn Vestberg, Gustaf Reinebo, Liselotte Maurex, Martin Ingvar, Predrag Petrovic
Physical capacity and coordination cannot alone predict success in team sports such as soccer. Instead, more focus has been directed towards the importance of cognitive abilities, and it has been suggested that executive functions (EF) are fundamentally important for success in soccer. However, executive functions are going through a steep development from adolescence to adulthood. Moreover, more complex EF involving manipulation of information (higher level EF) develop later than simple executive functions such as those linked to simple working memory capacity (Core EF)...
2017: PloS One
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